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I need to do a heater core flush. But not sure which hoses to disconnect. I believe the top right one might be the inlet because it is hot to the touch. Not sure which the outlet is that I need to put water through.
The bottom left/right don't go anywhere, it just loops right back into the firewall.
Thanks in advance for the help everyone!
The last time the member you are asking the question was on this site logged in was almost a year ago?
You may wat to either start your own "help me" thread or start over on this one and give all the basic information about your Mazda?